/leŋθ ||; lɛŋθ/noun1 [U] [C] the size of sth from one end to the other; how long sth is 长度: to measure the length of a room 测量房间的长度It took an hour to walk the length of Oxford Street. 在牛津街从头走到底得花一个小时。The tiny insect is only one millimetre in length. 这只小昆虫的长度只有一毫米。This snake can grow to a length of two metres. 这种蛇可以长到两米长。 ☞Look at width and breadth. 参看width及breadth。
2 [U] the amount of time that sth lasts 时间的长短；持续的时间: Many people complained about the length of time they had to wait. 很多人埋怨等得太久了。the length of a class/speech/film 课时╱演讲╱电影的长度
3 [U] the number of pages in a book, a letter, etc （书、信等的）篇幅
4 [C] the distance from one end of a swimming pool to the other 游泳池的长度: I can swim a length in thirty seconds. 我能在三十秒钟内从这一头游到那一头。
5 [C] a piece of sth long and thin 一段（细长的东西）: a length of material/rope/string 一块材料；一段绳索；一根细绳
at length for a long time or in great detail 长时间；详尽:
We discussed the matter at great length. 我们详谈了此事。 go to great lengths to make more effort than usual in order to achieve sth 不遗余力:
I went to great lengths to find this book for you. 我不遗余力为你找到这本书。 the length and breadth of sth to or in all parts of sth 到处；处处:
They travelled the length and breadth of India. 他们走遍了印度。